Looks like tri bars on an aero road bike to me
Sprayed in focus rs green

and the guy has 80%
eBay feedback
£600 will buy a good new bike with warranty and either 10 speed tiagra or 11 speed 105.
Rutland / Paul's have the Giant Defy 1 for £630 If ready to buy
Rather depends when you are ready to buy, now a good time for deals, spring / summer not so much as the current deals on 2016 bikes will have sold out, it's peak buying time for roadbikes and the 2017 models won't yet be discounted in the most part